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perf: add the usual special cases to many-strokes

Browse source 
For completeness, also compare [aligned] horizontal and vertical
strokes.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2011-08-07 12:26:41 +01:00
parent d953161f88
commit f646cb07a9
1 changed files with 109 additions and 1 deletions
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110
perf/micro/many-strokes.c
View file

@ -38,6 +38,110 @@ uniform_random (double minval, double maxval)
return minval + state * (maxval - minval) / 4294967296.0;
}
static cairo_perf_ticks_t
do_many_strokes_ha (cairo_t *cr, int width, int height, int loops)
{
int count;
state = 0xc0ffee;
for (count = 0; count < 1000; count++) {
double h = floor (uniform_random (0, height));
cairo_move_to (cr, floor (uniform_random (0, width)), h);
cairo_line_to (cr, ceil (uniform_random (0, width)), h);
}
cairo_set_line_width (cr, 2.);
cairo_perf_timer_start ();
while (loops--)
cairo_stroke_preserve (cr);
cairo_perf_timer_stop ();
cairo_new_path (cr);
return cairo_perf_timer_elapsed ();
}
static cairo_perf_ticks_t
do_many_strokes_h (cairo_t *cr, int width, int height, int loops)
{
int count;
state = 0xc0ffee;
for (count = 0; count < 1000; count++) {
double h = uniform_random (0, height);
cairo_move_to (cr, uniform_random (0, width), h);
cairo_line_to (cr, uniform_random (0, width), h);
}
cairo_set_line_width (cr, 2.);
cairo_perf_timer_start ();
while (loops--)
cairo_stroke_preserve (cr);
cairo_perf_timer_stop ();
cairo_new_path (cr);
return cairo_perf_timer_elapsed ();
}
static cairo_perf_ticks_t
do_many_strokes_va (cairo_t *cr, int width, int height, int loops)
{
int count;
state = 0xc0ffee;
for (count = 0; count < 1000; count++) {
double v = floor (uniform_random (0, width));
cairo_move_to (cr, v, floor (uniform_random (0, height)));
cairo_line_to (cr, v, ceil (uniform_random (0, height)));
}
cairo_set_line_width (cr, 2.);
cairo_perf_timer_start ();
while (loops--)
cairo_stroke_preserve (cr);
cairo_perf_timer_stop ();
cairo_new_path (cr);
return cairo_perf_timer_elapsed ();
}
static cairo_perf_ticks_t
do_many_strokes_v (cairo_t *cr, int width, int height, int loops)
{
int count;
state = 0xc0ffee;
for (count = 0; count < 1000; count++) {
double v = uniform_random (0, width);
cairo_move_to (cr, v, uniform_random (0, height));
cairo_line_to (cr, v, uniform_random (0, height));
}
cairo_set_line_width (cr, 2.);
cairo_perf_timer_start ();
while (loops--)
cairo_stroke_preserve (cr);
cairo_perf_timer_stop ();
cairo_new_path (cr);
return cairo_perf_timer_elapsed ();
}
static cairo_perf_ticks_t
do_many_strokes (cairo_t *cr, int width, int height, int loops)
{
@ -71,5 +175,9 @@ many_strokes (cairo_perf_t *perf, cairo_t *cr, int width, int height)
if (! cairo_perf_can_run (perf, "many-strokes", NULL))
return;
cairo_perf_run (perf, "many-strokes", do_many_strokes, NULL);
cairo_perf_run (perf, "many-strokes-halign", do_many_strokes_ha, NULL);
cairo_perf_run (perf, "many-strokes-valign", do_many_strokes_va, NULL);
cairo_perf_run (perf, "many-strokes-horizontal", do_many_strokes_h, NULL);
cairo_perf_run (perf, "many-strokes-vertical", do_many_strokes_v, NULL);
cairo_perf_run (perf, "many-strokes-random", do_many_strokes, NULL);
}